var fs = require('fs');
var options = {encoding:'utf8',flag:'s'};

var fileReadStream = fs.createReadStream('granins.txt', options);
fileReadStream.on('data', function(chunk) {
	console.log('Grains:%s', chunk);
	console.log('Read %d bytes of data.',chunk.length);
});
fileReadStream.on('close', function() {
	console.log('File Close');
});